Monero GUI - "remote node" will persist between launches

**correction: will not persist

This has been happening for a while: I'll add an external "remote node" from "monero.fail" into my Monero GUI, and most often than not the next time I launch it, a remote node will disappear.

I'll add other one again. And yet the next time I launch a wallet, often it'll disappear too.

I've even marked it as "trusted" - it'll still disappear.

A node itself will probably remain on "monero.fail" website, although I haven't checked it every single time.

What's the matter?